Grain-binder



(Model.) 2 Sheets-Sheet 1.

LF. STEWARD.

A* GRAIN BINDER. No. 272.597. y Patented Ffeb.20,1883.

UNITED STATES PATENT OEETCE.

JOHN F. STEWARD, OF PLANO, ILLINOIS.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 272,597, dated February20, 1883.

Application filed October 20, 1880. (Model.)

To all whom tt may concern Be it known that I, JOHN F. STEWART), acitizen of the United States, residing at Plano, in the county ofKendall and ,State of Illinois, have invented new and usefulImprovements in Grain-Binders, of which the following is a fulldescription, reference being had to the accompanying drawings.

Figure 1 is a front elevation; Fig. 2, a view taken from the outer sideof the machine, showing in elevation a portion of the slotted Wall ofthe grain-receptacle and the holding and cutting mechanism; Fig. 3, aninverted plan view of the holder; Fig. 4, a plan view, partly insection, ofthe knotter and its operating mechanism; Fig. 5, an invertedplan view of' part ot' the holder; Fig. 6, a view of the cam way foroperating the movable jaw ofthe tyer, and Fig. 7 a view showing theposition ofthe cord at completion ofthe knot.

M yimprovementsareadaptableto'maiiyforms ot' grain-binders now in use.As shown, they are adapted to that class of machine iu which the bindingmechanism is attached to the side ofthe harvester, the grain beingdelivered over thel drive-wheel into the binding-receptacle and againstthe cord leading from the cord-holder to the binding-arm. The devicesshown are better suited to that class of binders in which the gavel iscompacted by special pai-ts, independent of the compressing and bindingmechanism, and to those using twine as binding material, yet certainparts may be employed in machines using wire.

The invention consists in such an arrangement. ofthe twineholdingmechanism that its parts shall automatically conform to variations inthe size of twine, in so constructing the holding` mechanism that -itmay take up in seizing the twine an amount in length sufficient to formthe. knot, and in so regulating its movements that the saine maybe paidout as required by the tyer, and in an improved device for supportingthe twine and dropping the same when the knot is tied.

In the drawings, Ais a wheel bearing on its rim the cam a for operatingthe knife and twine-holder, and on its side the cog-segments b and c,the delay-surfaces d and e, and the cam f.

B is the pivot or shaft` of the wheel A.

C is a support for the tyer and holder, mounted loosely u pon the shaftB, so that the saine may revolve therein.

D is a vibrating needle provided with an extension, g, which I describeand claim in another application now in the Patent Office. The needleiskeyed to the shaft E and receives its vibrating motion therefrom.

F is a lever or arm designed to carry the bundle so low that the cordsurrounding the same will be drawn by the needle well into the tyer.This lever is pivoted on a stationary part of the binder at G is thetyer, its jaw t' being` a continuation of the stem m, which slides in aslot in the shaft G ofthe tyer, and which is provided with the roller a.This roller moves in the cam-groove o, made in the bearing ofthetyershaft, thus giving the jaw an opening and closing movement.

H isa cord-directing hook pivoted at H in a standard on. the support Cand at H2 in the plate I. lt is swung at the proper time by means of thecam fcomiiig in contact with the roller h on the arm h2.

I is a plate separating the tying mechanism from the accumulating grain,and also forming a support for other parts. It is provided with a slot,through which the needle, after piercing the grain, enters to carry thetwine to the tyer, and to allow the band to be pulled down to draw theknot o' from the tyer.

J is a lever for actuating the holding and cutting devices. 1t isprovided with the antifriction rollers g g, spanning the rim, and thecam a of the wheel A is pivoted at r, and its lower extremity engages anotch inthe slide K of the cord-holder.

L is a knife for severing the twine attached to the said slide.

The cord-holding device is composed ofthe slide K, cheek s, and arm t,the latter being pivoted on the pin te in the support u.

u is a dat spring resting beneath the pivot and giving it a slightpressure upward.

The'operatioii ot' my holder is as follows, beginning with the parts Kand t: In Fig. 5 they are shown in the position they are when the twine,a section of which is shown atf, Fig. 5, is drawn within their reach.The rotation of the wheel A imparts a reciprocating motion IOO arm tintothe notch on the slide K. Thetwine is doubled over the part forming theside of the notch in the slide K, and is carried between the sides ot'said slide and the arm t and cheek s, as shown in Fig. 2. The knife L,moving, as it does, with the slide K, severs that part of the twineextending` between the holder` and knot. Let it be understood that in mymethod of holding the twine but one strand is held at a time; that theheld endf, Fig. 7, is released as soon as the knot is tied; that it isthe other ply of the twine (that coming` through the eye of the needle)which is severed atfz, Fig. 7, after the twine has been carried by thisslide K between the holding parts. When the slide is moved to its placethe needle rises and draws the twine up around the hook t of the arm t,and it will be understood that, the said part being free to move upward,any strain put upon the upward-drawn twine will have the effect ofdrawing the hold ing parts closer together and pinch the twine theharder between them. In the ascent of the needle the twine is drawnacross the receptacle,'as shown by the dotted line in Fig. 1, the partnearest the holder being laid into the hook ofthe tyer while in itsiirst position of rest. After the accumulation of the next gavel thedescent of the needle carries the twine around the gavel and lays thepart to be tied into the hook of the tyer. The wheel A moving in thedirection indicated by the arrow in Fig. 1, the segment b is engagedwith the pinion of the tyer, and it is given a revolution and a halt inthe direction indicated by the arrow in Fig. 1. A revolution only isnecessary to complete the knot; but the movement continues for ahalf-revolution farther, so as to have the point of the tyer rest for amoment directed toward the bundle, so that when the latter ialls awaythe knot will be drawn off the point of the tyer. The segment Gengageswith the teeth of the pinion,and gives the tyer another haltrevolution,leaving it in its state of rest as shown in Fig. 1. rlhe delay-surfacesj upon the end of the pinion slide upon the locking-faces d and e of thewheel A and retain the pinion in position while itis between thesegments.

Although I operate thejaw of the tyer differently from others, itshandling ofthe twine and forming the loop is that in common use, and iswellshownand described in the patents ot' J. Behel, February 16, 1864-,S. D. Locke, February 11, 1870, and others. When by a revolution ot' thetyer the twine is formed around it and the part to be dra-wn through theknot is laid between the jaws, the roller on the slidingjaw, running inthe cam-groove o., causes the jaw to slide land close, which it doesalittle before the tyer reaches its position of rest for the dischargeot' the knot. The bundle falls, drawing the loop off the point of thetyer and over the loop still held between the jaws, and tightening theknot. Upon the engagement ofthe segment e with the pinion the tyer makesits final half-revolution,and by means of the cam-groove o the jaw ofthe tyer is permitted to open and let the loop escape. The cam-groove ois represented in Figs. 4 and 6. Just before the tyer is in its firststate of rest the arm t of the holder is open for an instant, as shownin Fig. 5. The hook t then is caused to carry the twine into the notchin the slide K, which then moves and carries the twine in vbetween theclamping-surfaces, and the knife L severs the twine at f2, Fig. 7, asbefore described. The amount of twine required to 'encircle the tyerinforming the knot is not drawn through the holder, and thus injured;but the slide K moves at the proper'rate and time to allow the tyer tohave what is needed. Bearing in mind that the upper side of the arm tischanneled or cut away where the twine lies between it and the slide K,as shown in dotted lines, and hence that the twine is held only bypressure between the slide K and cheek s, it will be understood that, ifthe slide K is slowly moved to the left, the twine (if slight stress beapplied) will pay out inthe direction of the tyerthat shown by the arrowin Fig. 2. As the slide K withdraws, all that part of the twine releasedfrom pressure between it and the cheek s will be free to render aroundand upward. As the needle descends through the grain the compressor willmove a little in advance and carry the bundle so lowr that the twinewill be carried into the hook of the tyer and be drawn out at such anangle as to be sure of lying in place. This movement of the compressorwill be understood by reference to Fig. 1. The arm F being pivoted to apart of the frame-work at a distance from the shaft E, as the needlerises and falls the link It will be swung ou the pivot t", and when theneedle is thrown upward the arm F will lie parallel with the needle. Areturn movement of the needle will reverse the swing and carry the arm Fto the position shown in Fig. 1. While the knot is being made the twinemust be held in a certain relation to the tyer. This is done by the hookH, which is always retained in the position shown in Fig. 2, except whenthe knot is finished, when the cam fon the wheel A passes, so that theroller h can no longer tread on it, and the hook H is permitted to swingand allow the knot to fall, and thus escape. The guide U also helps toretain the twine in position in relation to the tyer.

The inner side of the receptacle is shown at T, Fig. 1, and the passageof the grain is limited between it and the plate I.

What I claim as new is- 1. The combination ofthe tying mechanism IOC andholding mechanism with the slide K and mechanism for moving it to closeupon the twine and to take up any length of said twine that may berequired to form the knot, and to withdraw at the proper rate and propertime in relation to the movement of the tying mechanism to pay out theamount thus taken up, substantially as and for the purpose set forth. 2.The combination, with the cheek s and the slide K, of the arm t toassist in grasping the twine and to direct the pressure caused by draftupon the twine, so as to compress its end between the said parts K ands, substantially as shown and described.

3. The combination of the wheel A, having 15 the cam-rim a, with theslide K, cheek s, and intermediate operating mechanism for taking up,holding, and payin g out the length of twine required to forni the knot,substantially as described.

- JOHN F. STEWARD. Witnesses:

ROBERT H. DIXON, L. B. WOOD.

